2006-2009 Suzuki LT-Z50 QuadSport ATV Factory Service Manual, Page 122Get this manual
CHASSIS
DUST SEAL Remove the each dust seal with the special tool09913-50121: Oil seal remover
The removed dust seal must be replaced with new one
BEARING Inspect the play of the wheel hub bearings by finger while they are in the wheel hubRotate the inner race by finger to inspect it for abnormal noise and smooth rotationIf there is anything unusual, replace the bearing with new one